the reef biota at point addis marine national park - Parks Victoria

Parks Victoria Technical Series No. 83
Point Addis Subtidal Reef Monitoring
Index of Figures
Figure 1.1. Examples of species of macroalgae found on Victorian subtidal reefs................................ 3
Figure 1.2. Examples of species of invertebrates and cryptic fish found on Victorian subtidal reefs..... 4
Figure 1.3. Examples of fish species found on Victorian subtidal reefs. ................................................ 5
Figure 2.1. Location of monitoring sites at Point Addis. The Marine National Park boundary is shown
with monitoring sites marked in red. Substratum texture is indicated using shaded relief of lidar data
(courtesy of Parks Victoria). .................................................................................................................. 10
Figure 2.2. Biologist-diver with transect line......................................................................................... 13
Figure 2.3. The cover of macrophytes is measured by the number of points intersecting each species
on the quadrat grid. ............................................................................................................................... 14
Figure 3.1. Three-dimensional MDS plot of algal assemblage structure for sites at Point Addis. Black
symbols indicate the first survey. Kruskal stress = 0.12........................................................................ 28
Figure 3.2. Algal species diversity indicators (mean ± standard error) inside and outside Point Addis
Marine National Park. ............................................................................................................................ 29
Figure 3.3. Percent cover (mean ± standard error) of dominant algal species inside and outside the
Point Addis Marine National Park.......................................................................................................... 30
Figure 3.4. Example of diverse thallose algal community at Site 3906 , Ingoldsby Reef Inner, 18 May
2012, Point Addis Marine National Park................................................................................................ 33
Figure 3.5. Three-dimensional MDS plot of mobile invertebrate assemblage structure for sites at Point
Addis. Black symbols indicate the first survey. Kruskal stress = 0.14................................................... 35
Figure 3.6. Mobile invertebrate species diversity indicators (mean ± standard error) inside and outside
Point Addis Marine National Park.......................................................................................................... 36
Figure 3.7. Abundance (mean ± standard error) of dominant mobile invertebrate species inside and
outside the Point Addis Marine National Park. ...................................................................................... 38
Figure 3.8. Southern rock lobster Jasus edwardsii at Site 3906, Ingoldsby Reef Inner....................... 41
Figure 3.9. Three-dimensional MDS plot of mobile invertebrate assemblage structure for sites at Point
Addis. Black symbols indicate the first survey. Kruskal stress = 0.01................................................... 43
Figure 3.10. Fish species diversity indicators (mean ± standard error) inside and outside Point Addis
Marine National Park. ............................................................................................................................ 44
Figure 3.11. Long snouted boarfish Pentaceropsis revicurvirostris at Site 3906, Ingoldsby Reef Inner.
............................................................................................................................................................... 45
Figure 3.12. Abundance (mean ± standard error) of dominant fish species inside and outside the Point
Addis Marine National Park................................................................................................................... 46
Figure 3.13. Seaweed functional groups (mean ± standard error) inside and outside the Point Addis
Marine National Park. ............................................................................................................................ 49
Figure 3.14. Invertebrate functional groups (mean ± standard error) inside and outside the Point Addis
Marine National Park. ............................................................................................................................ 51
Figure 3.15. Fish functional groups (mean ± standard error) inside and outside the Point Addis Marine
National Park. ........................................................................................................................................ 52
Figure 3.16. Sediment cover (mean ± standard error) inside and outside the Point Addis Marine
National Park. ........................................................................................................................................ 53
Figure 3.17. Richness and abundance (mean ± standard error) of Maugean algae species inside and
outside the Point Addis Marine National Park....................................................................................... 55
Figure 3.18. Proportion of legal-sized blacklip abalone Haliotis rubra at Point Addis Marine National
Park and reference areas.. .................................................................................................................... 55
Figure 3.19. Fish size (mean ± standard error) spectra inside and outside the Point Addis Marine
National Park. ........................................................................................................................................ 57
Figure 3.20. Density (mean ± standard error) of fished fish species inside and outside the Point Addis
Marine National Park. ............................................................................................................................ 58
Figure 3.21. Biomass (mean ± standard error) of fished species inside and outside the Point Addis
Marine National Park. ............................................................................................................................ 59
Figure 3.22. Abundance (mean ± standard error) of different size classes of fishes at Point Addis
Marine National Park and reference sites............................................................................................. 60
Figure 3.23. Size structure of blue throat wrasse, Notolabrus tetricus at Point Addis Marine National
Park and reference sites........................................................................................................................ 61
Figure 3.24. Size structure of all fishes at Point Addis Marine National Park and reference sites. ..... 62
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